PRETTYPRINTPro Formatter
26 Languages Supported

Instantly Beautify
Any Code

A lightning-fast, privacy-focused code formatter for developers. Support for JSON, JavaScript, HTML, CSS, and 20+ other languages.

Popular:JSON FormatterSQL BeautifierXML FormatterCSS BeautifierHTML Formatter

Why Choose Pretty Print?

Designed for modern developers who need robust, private, and instant tools.

Lightning Fast AST

We use strict Abstract Syntax Trees (AST) logic built into bleeding-edge JavaScript parsers, skipping the server and rendering immediately.

100% Client-Side Private

Zero data tracking. Zero remote payloads. All minification and formatting calculations occur natively inside your browser.

VS Code Themes & Plugins

Enjoy familiar Intellisense logic via the Monaco Editor framework with real-time squiggly-line syntax highlighting.

Top Formatter Tools

{}

JSON Formatter

Pretty print JSON data — format, validate, and beautify instantly.

JS

JavaScript Formatter

Format and indent JavaScript and ES6+ code syntax.

TS

TypeScript Formatter

Beautify TypeScript files with proper typing alignment.

⚛️

React (JSX/TSX) Formatter

Format React JSX/TSX components structurally.

<>

HTML Formatter

Indent and organize HTML5 document structures.

#

CSS Formatter

Beautify CSS stylesheets with auto-indentation.

L

LESS Formatter

Format LESS preprocessor stylesheet declarations.

S

SCSS Formatter

Beautify SASS/SCSS nested structures instantly.

View all 26 formats

How to Format Code Online

Tired of messy one-liners? Follow these three simple steps to beautify or minify your code completely free.

1

Select Language

Choose from our massive library of 26 supported languages ranging from frontend stacks (HTML, React, CSS) to backend data structures (SQL, Python, JSON).

2

Paste & Format

Drop your minified text block directly into the left editor panel. As soon as you paste, our AST processors will validate schema errors and format it instantly.

3

Copy or Minify

Use the toolbar to copy the beautifully structured document, download it directly to a file extension, or even reverse the process to compress and minify your web bundles!

Complete Tool Directory

Whatever language you speak, we can read. All parsers rely on industry-standard formatting rules including AST logic and standard protocol validation.

{}
JSON
JS
JavaScript
TS
TypeScript
⚛️
React (JSX/TSX)
<>
HTML
#
CSS
L
LESS
S
SCSS
DB
SQL
PY
Python
☕
Java
C
C
C++
C++
C#
C#
PHP
PHP
RB
Ruby
LUA
Lua
🐪
Perl
/>
XML
X
XAML
Y
YAML
QL
GraphQL
M↓
Markdown
MDX
MDX
B
Babel
A
Angular

The Ultimate Free Online
Code Formatter & Beautifier

Pretty Print is the professional-grade solution for developers, engineered to transform scrambled, minified, or syntactically messy code into perfectly indented architecture strings.

In the modern software development lifecycle, engineers constantly interact with compressed blocks of logic. Whether you are debugging a complex API payload mapped in JSON, decrypting a production-bundle of JavaScript, or reviewing deeply nested queries in SQL, attempting to parse unformatted text is an exercise in frustration.

Our tool acts as a universal hub for codebase aesthetics. No matter if you're working with HTML templates, CSS stylesheets, or Python modules, Pretty Print instantly beautifies your source code with industry-standard rules.

Why Privacy-First Formatting Matters

Most legacy beautifier tools submit your raw code to remote backend servers. For developers working under strict NDA policies or managing sensitive .env configurations, this represents a catastrophic security vulnerability.

Pretty Print leverages native browser WebAssembly and integrated script engines. Your proprietary code sequences are 100% private and never leave your browser partition.

Technical Specifications

  • Zero Latency

    AST parsing occurs instantly in the browser thread.

  • 26+ Languages

    Support for React, SQL, JSON, YAML, and more.

  • IDE Framework

    Monaco-powered workspace with VS Code themes.

  • Bi-directional

    Switch between beautified and minified states.

Editor EngineMicrosoft Monaco
Privacy Model100% Client-Side

Advanced Productivity Tools

Intellisense Validations

Go beyond simple indentation. Our editor recognizes unresolved loops, missing bracket constraints, or invalid XML tags through real-time red squiggly highlighting—identical to your desktop IDE.

Bi-directional Minification

Efficiency is key for production deployments. Transform rich, readable source files back into high-compression states via Terser and CSSNano integrations, perfect for CDN-ready assets.

Frequently Asked Questions

Everything you need to know about our formatting tool.